Iowa, 1999

Damaging Winds and Lightning Strikes in Iowa, June 10, 1999

June 10, 1999 · NWS DMX · 4 events in 4 counties and zones

The synoptic weather situation remained much the same as it had been over the past few days with a very slow moving cold front oriented northeast to southwest across northwest Iowa. The front stalled during the late night hours.

Where it happened

Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
1
Property damage
$73,000
Crop damage
$2,000
Events
4

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS DMX wrote it up.

The synoptic weather situation remained much the same as it had been over the past few days with a very slow moving cold front oriented northeast to southwest across northwest Iowa. The front stalled during the late night hours. Another upper level disturbance lifted northeast in the southwest flow aloft that was in place over the central U.S. An area of thunderstorms developed to the southwest of Iowa and lifted northeast into the state. The storms took on a bow echo configuration as they lifted over south central and central Iowa. There were numerous reports of gusty winds and marble size hail, however most of the winds remained below severe levels. High winds were reported with the storms as they moved through Madison County, with 70 to 80 MPH winds reported south of Winterset. As the storms moved through the Red Rock Reservoir area, winds of 70 to 80 MPH caused tree damage in the area. The storms moved into central Iowa by mid day. They had weakened, but lightning from the storms struck a church in Urbandale causing a small fire in the buildings roof and attic. Damage was set between $5,000 and $10,000. Lightning struck a tree outside of a mobile home in Indianola. The tree crashed down onto the mobile home, smashing through the roof and wall and injuring one resident inside. She sustained only minor injuries.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 thunderstorm wind, 2 lightning. Local standard time, as filed.

Thunderstorm Wind, Madison

When
June 10, 10:05 AM CST
Where
Madison County, 2 mi S of Winterset
Measured
65 kt (75 mph)
Property damage
$30,000
Reported by
UNKNOWN
Coordinates
41.300, -94.020

Lightning, Warren

When
June 10, 10:45 AM CST
Where
Warren County, Indianola
Injuries
1 direct, 0 indirect
Property damage
$10,000
Reported by
NEWSPAPER
Coordinates
41.334, -93.561 (the zone’s center; the record gives no point)

Thunderstorm Wind, Marion

When
June 10, 11:05 AM CST
Where
Marion County, 1 mi S of Red Rock
Measured
65 kt (75 mph)
Property damage
$25,000
Crop damage
$2,000
Reported by
UNKNOWN
Coordinates
41.420, -93.120

Lightning, Polk

When
June 10, 11:20 AM CST
Where
Polk County, Urbandale
Property damage
$8,000
Reported by
NEWSPAPER
Coordinates
41.686, -93.573 (the zone’s center; the record gives no point)

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Lightning
A lightning strike that killed, injured or caused damage.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Iowa in 1999Every state in 1999This day in weather historyWarnings in Iowa, June 1999

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5698942, 5698944, 5698941, 5698943.